一级黄色片免费播放|中国黄色视频播放片|日本三级a|可以直接考播黄片影视免费一级毛片

高級(jí)搜索

留言板

尊敬的讀者、作者、審稿人, 關(guān)于本刊的投稿、審稿、編輯和出版的任何問(wèn)題, 您可以本頁(yè)添加留言。我們將盡快給您答復(fù)。謝謝您的支持!

姓名
郵箱
手機(jī)號(hào)碼
標(biāo)題
留言內(nèi)容
驗(yàn)證碼

高信噪比大指向誤差環(huán)境中的波束形成

高勇,  肖先賜

高勇, 肖先賜. 高信噪比大指向誤差環(huán)境中的波束形成[J]. 電子與信息學(xué)報(bào), 2001, 23(4): 338-344.
引用本文: 高勇, 肖先賜. 高信噪比大指向誤差環(huán)境中的波束形成[J]. 電子與信息學(xué)報(bào), 2001, 23(4): 338-344.
Gao Yong, Xiao Xianci . Beamforming in the Environments of High SNR and Large Steeriug Error[J]. Journal of Electronics & Information Technology, 2001, 23(4): 338-344.
Citation: Gao Yong, Xiao Xianci . Beamforming in the Environments of High SNR and Large Steeriug Error[J]. Journal of Electronics & Information Technology, 2001, 23(4): 338-344.

高信噪比大指向誤差環(huán)境中的波束形成

Beamforming in the Environments of High SNR and Large Steeriug Error

  • 摘要: 基于協(xié)方差矩陣加權(quán)的波束形成方法(SMI)在計(jì)算加權(quán)向量時(shí)引進(jìn)干擾和噪聲的影響,投影方法在計(jì)算加權(quán)向量時(shí)引進(jìn)干擾信號(hào)的影響,這些都造成了波束形成效果的不理想。在有用信號(hào)的信噪比較高且出現(xiàn)較大的指向誤差時(shí),SMI和投影方法失效。本文針對(duì)上述問(wèn)題提出了利用信號(hào)周期平穩(wěn)性,采用周期波束形成方法來(lái)解決上述問(wèn)題。模擬實(shí)驗(yàn)驗(yàn)證了本文的方法。
    Abstract: In the beamformer based on sample covariance matrix inverse (SMI) algorithm, the calculation of weight vector comprises the components of interferences and noise. The projection method comprises the components of interferences. It induces the imperfective results of the beamformer. Under the environments of high signal-to-noise ratio (SNR) and large steering error, SMI algorithm and the projection method are invalid. The cyclic beamformer of utilizing signal s cyclostationarity is proposed to resolve the problem above-mentioned. The simulation results verify the cyclic beamforming algorithm.
    • HTML全文
  • A.J. Paulraj, C. B. Papadias, Space-time processing for wireless communication, IEEE Signal Processing Magazine, 1997, 14(6), 49-83.[2]L.G. Godara, Applications of antenna array to mobile communication, Part I: Performance improvement, feasibility, and system considerations, Proc. IEEE, 1997, 85(7), 1031-1060.[3]L.G. Godara, Applications of antenna array to mobile communication, Part II: Beam-forming and direction-arrival-considerations, Proc. IEEE, 1997, 85(8), 1193-1245.[4]I.S. Reed, J. D. Mallett, L. E. Brennan, Rapid convergence rate in adaptive arrays, IEEE Trans. on AES, 1974, 10(6), 853-863.[5]A.麥羅拉著,龐沁華等譯,蜂窩移動(dòng)通信-模擬和數(shù)字系統(tǒng),北京,人民郵電出版社,1997年,第4章4.2.10節(jié),第146頁(yè),第7章7.3.1節(jié),第289頁(yè).[6]P. Petrus, R. B. Ertel, J. H. Reed, Capacity enhancement using adaptive arrays in an AMPS system, IEEE Trans. on Vehicular Technology, 1998, 47(3), 717-727.[7]D.D. Feldman, L. J. Griffiths, A projection approach for robust adaptive beamforming, IEEE Trans. on SP, 1994, 42(4), 867-876.[8]W.A. Gardner, Spectral correlation of modulated signal, Part I: Analog modulation, IEEE Trans. on COM, 1987, 33(6), 584-594.[9]W.A. Gardner, W. A. Brown, C. K. Chen, Spectral correlation of modulated signal, Part II: Digital modulation, IEEE Trans. on COM, 1987, 35(6), 595-601.[10]李立霞,王文博,王德雋,周期平穩(wěn)信號(hào)處理及其應(yīng)用,電子科學(xué)學(xué)刊,1996,18(5),310-316.[11]Gao Yong, Xiao Xianci, Tang Haiyan, Estimation of cycle frequency for multiple cyclostationary signals, Proceeding of 1998 Fourth International Conference on Signal Processing, Beijing, China, October, 1998, 331-334.
  • 加載中
計(jì)量
  • 文章訪問(wèn)數(shù):  2166
  • HTML全文瀏覽量:  110
  • PDF下載量:  379
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  1999-06-11
  • 修回日期:  1999-12-08
  • 刊出日期:  2001-04-19

目錄

    /

    返回文章
    返回